Darksteel Reactor + Eternity Vessel + The Ozolith + Mishra, Eminent One
Darksteel Reactor
Eternity Vessel
The Ozolith
Mishra, Eminent One
Win the game
How it works
At the beginning of combat, Mishra and The Ozolith trigger.
Resolve the Mishra trigger, creating an artifact creature token copy of Eternity Vessel that enters with a number of charge counters equal to your life total.
In response to the remaining trigger, cause Eternity Vessel to leave the battlefield.
The Ozolith triggers, putting a number of charge counters on itself equal to the charge counters that were on Eternity Vessel.
Resolve The Ozolith trigger from step 1, moving all counters from it onto Darksteel Reactor.
Darksteel Reactor triggers, causing you to win the game.